Centrifugal separator.



APPLIUATION FILED SEPT. a. 1901.

N0 MODEL.

l UNITED STATES PATENT OFFICE.

EUGFNE BARDOLLE, OF PARIS, FRANCE.

@Mawr-FALesperaron- SPECIFILCATION forming part of Letters atent No. 717,963, dated anual-y 6, 1903.

Application filets-painter 3,1901. siriano. 74,246. inmbati provements in Centrifugal `beparators,` et'` which the following is a specification.

This invention has foritsobject an apparatus lfor the separation of mixed gaseous bodies of different specific gravities, in which apparatus theaction of centrifugal forces on y the particles ofthe mixture being operated on are made use of to effect the object in View.

Itis well known that the force which tends to separate two neighboringmolecules of dit"- ferent masses is proportional to the difference of the masses f ot' these particles and to the square of the tangential component of their velocity of rotation.

Many attempts have been made in order to apply the principle oi' apparatus constructed for the separation of solidsand liquids to the separation of gases. I have found that the success of the results depends on the shape of the vessel inwhich the gases are treated and that the best shape to be given to the revolving surfaces in the rotating vessels is that of a parabolo'id, because paraboloids are what may be termed level surfaces of a rotating fluid.

In order that my invention maybe clearly understoothl will describe the saine with reference to an apparatus constructed for separating from a certain mixture of` gases the carbon dioxid and the hydrogen which `it con'- `tains, the composition of such a mixture being as follows: (10 BLS?) per cent.; CO,`

Said apparatus isillustraled in the acconr panying drawings, in which Figure l is a vertical section of the apparatus; Fig. 2, half of a horizontal cross-section on the line A B of Fig. l, and Figa section and a plan of one of the apertures provided in the Walls of the revolvingr drum and in theV bottom plate which separates each casing from the chamber arranged above it.

a and Z; are 'revolving drums, While c is a stationary casing. 'lhe'revolving drums are connected in any suitable manner to a vertical spindle d-for instance, by means of iron pieces e--and the stationary casing is mounted on a `fixed support f. The vertical spindle d, the ends of whichfare guided by stepped Vbearings g of suitable pattern, is given `a rotary motion by mea-nsof any suitable gearing, such as wheels,l pulleys, endless screws,

and the like. In thearrangementshown in Fig. `1 the shaft ris'connected to the intermediateshaftj by means of the separate wheel'z' and actuatesithe spindle d by means of a helical gear comprising a Worm-wheel k, keyed on the shaft/,land a work lm, cut on the spindle d. Above th`e casing anddrums are 'arranged three closed casings no p, forming three concentric chambers 'n' 0' p', communieating, respectively, as hereinafter described, with the chambers formed by the casing c and drums a l). A central tube r surrounds the axle d, which is free torevolve therein. Each chamber n o' 1J' communicates with the branch pipe s, fitted with a flange t, to which a regulatingcock, permitting of adjusting the issue of the gas, is fixed. The inlet of the mixture of gas to be separated occurs through the branch pipe u, integral with the aforesaid supportf. The gases on being separated pass through apertures v, Figs. 2 and 3, provided in the walls of the revolving drums a andpb. In order to insure that these apertures do not offer any resistance to lthe ow of the gas through them, (a disadvantage which would occur if the apertures were situated in a plane tangentto the drums,) the sheets of metal formingrthe Walls of the drums are bent outward, as shown in Fig. .3,d`uring the operation of making these apertures, so that the latter are in meridian planes of a solid generated by the revolution of aparaboloid, or, in other words, these apertures are normal tothe traouter peripheryand around the'center of the bottom plate. i The drums ct and'b, which, as

stated, are in the form of paraboloids,`are

preferably constructed of thin sheetsteel, cut out in the direction of the height through meridian cross-sections ot the -paraboloids,

loo

special machinery being used in forming the apertures for the passage of the gaseous molecules; The plates are then welded together.

The hereinbefore-described apparatus is more specifically designed with a View to its being utilized for the following purposes: first, elimination of the solid or liquid molecules carried bythe gases; second, extraction of the carbon dioxid from ordinary generator-gas, such as Mond gas, Dowson gas, and Riche gas-which gases have about the composition above given and which gases contain twenty per one hundred thereof by volume and fifty per one hundred by weight of dioxid, a proportion which may be further increased by decomposing carbonates in the retorts; third, extraction of the hydrogen from such a gas, which contains forty per one hundred thereof byvolume; fourth, extraction of oxygen from the air ina state of purity sucient to allow of this gas bei ng used in the oxyhydrogen blowpipe simultaneously with the hydrogen extracted by the same means, these various applications being susceptible of being eected in their entireiy,or partly,in a single installation.

One and the same gas-works may have the advantage of producing economically the motive power it requires by utilizing in internalcombustion engines the carbon monoxid and the hydrocarbons whichJ'orml forty per cent., by volume, of the gas, these latter being more than sufficient to drive the separators and compressors, by means of which the gases that are collected separately are stored under high pressure in special reservoirs and the like.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In an apparatus for separating fluids by means of centrifugal force, a casing in the form ot' a paraboloid, revolving drums of the same form and having the same axis, and provided with apertures fu, closing-plates for the easing and drums of the same forming separate concentric chambers, an inlet-pipe to admit the mixture of gases, outlet-pipes for the uids separated, and means for rotating the drums, substantially 4as described.

2. In an apparatus for separating fluids by means of centrifugal force, a casing in the form of a'paraboloid, revolving drums of the same form and having the saine axis and l1`aving apertures 0, closing-plates for the casing and drums forming separate concentric chambers, a pipe for the admission of the mixture of gases, the walls of the revolving drums being bent outward to form the said apertures lu in meridian planes of a solid generated by the revolution of a paraboloid, outlet-pipes for the separated Huids, and means for rotating the said drums, substantially as described.

3. In an apparatus for separating Huid by means of centrifugal force, a casing in the form of a paraboloid, revolving drums of the same form and having the same axis, and being provided with apertures yr, closing-plates for the casing and drums forming separate concentric chambers, a pipe for the admission of the mixture oi' gases, outlet-pipes for the separated uids, a spindle supporting the re- -volving drums, a worm-screw on the end of this spindle, a toothed wheel gearing with this worm-screw, and means for rotating said toothed wheel, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit- DQSSGS.

EUGNE BARDOLLE. IVitneSSes:

EDWARD P MACLEAN, EMILE KvLo'Tz. 

